Ответ:
2Ca+O2=2CaO
CaO+H2CO3=CaCO3+H2O
CaCO3+2HCl=CaCl2+H2CO3
СаCl2 + 2 NaOH = Ca(OH)2 + 2 NaCl
Ca(OH)2 + CO2 = CaCO3 + H2O
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Ответ:
2Ca+O2=2CaO
CaO+H2CO3=CaCO3+H2O
CaCO3+2HCl=CaCl2+H2CO3
СаCl2 + 2 NaOH = Ca(OH)2 + 2 NaCl
Ca(OH)2 + CO2 = CaCO3 + H2O